With completely wireless earbuds, the rule is: when the battery fails, they have to be disposed of. Not so with the Fairbuds, that allow you to replace batteries in just a few seconds. Combined with a repairable design, the earbuds should therefore have an extremely long lifetime.
Cool. Their first gen Fair buds were kinda pointless. The headphones though, the Fair buds XL are excellent. I bought a pair recently and I love them.